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European Regulators Approve New Alzheimer’s Drug Following Initial Rejection

News RoomBy News RoomDecember 1, 2024
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In July, European regulators initially raised concerns regarding the Alzheimer’s drug lecanemab, stating that its benefits did not sufficiently outweigh its risks. However, after further evaluation, they have now recommended granting marketing authorization for the drug, which is marketed under the brand name Leqembi. Lecanemab is designed to be administered via an intravenous drip every two weeks, targeting amyloid beta, a protein that forms the sticky plaques associated with Alzheimer’s disease. Alzheimer’s itself is a progressive neurodegenerative disorder, recognized as the most prevalent form of dementia, and it is estimated to affect approximately 7.8 million individuals across the European Union.

Recent trials have indicated that Leqembi can slow cognitive decline associated with Alzheimer’s disease. Nonetheless, the European Medicines Agency (EMA) previously highlighted serious safety concerns related to the treatment. In their earlier assessment, they stated that the potential benefits of slowing cognitive decline did not effectively offset the risks of severe side effects, which included swelling and possible bleeding in the brains of patients receiving the treatment. Due to these side effects, the drug has been limited to individuals who possess one or no copies of the ApoE4 gene, as having two copies of this gene significantly raises the risk for Alzheimer’s and associated side effects from the treatment.

Despite these limitations, the EMA plans to implement a controlled access program to ensure Leqembi is administered only to the appropriate patient population. This program is intended to systematically monitor patients for any serious side effects, utilizing brain scans to closely track the treatment’s impact. Such measures are critical given the delicate balance of potential benefits and risks posed by this treatment, especially in light of varying genetic predispositions among patients.

In the United States, the drug has already received approval in 2023, and the UK’s Medicines and Healthcare products Regulatory Agency (MHRA) followed suit with approval in August. However, despite this approval, Leqembi has not been made available through the UK’s National Health Service (NHS). The NHS determined that the drug’s benefits were insufficient to justify its associated costs, reflecting broader concerns regarding healthcare expenditures and the evaluation of the value provided by emerging treatments.

The approval of lecanemab represents a complex intersection of hope for Alzheimer’s patients and the stringent scrutiny of drug safety and efficacy by regulatory bodies. With the ongoing challenges surrounding Alzheimer’s disease, treatments that offer even modest improvements, such as Leqembi, are subject to intense examination. The decision to recommend marketing authorization highlights the delicate balancing act between facilitating access to potentially beneficial medications while rigorously ensuring patient safety and managing the potential for adverse effects.

As developments progress regarding the availability and usage of Leqembi, the medical community and patient advocates continue to monitor the situation closely. This case illuminates the growing demand for effective Alzheimer’s therapies and the intricate regulatory landscape that governs new treatments. While the approval of Leqembi may bring some optimism, it also raises critical questions about the standards for treatment approvals, the cost-effectiveness of new drugs, and the equitable access to potentially life-altering therapies for Alzheimer’s patients.

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